The following information was pieced together from various sources, including The Society for the Preservation of Kansas City History and Genealogy and the Chicago Immigrant and Settler Society. Some of the data is hearsay, having been related to me by descendants of the subjects. While certain inaccuracies may be included, I believe the overall story is not only an accurate account, but also quite revealing of the trauma and turmoil that engulfed Sandra's early years.

Sandra was born in Chicago. Her mother, Alexandra, was Russian. Cassandra's father, Karl Ernst Koertz, was German. They named their child Cassandra Tatiana Koertz.